An AFP document submitted to secure the search warrant mistakenly included a paragraph from a separate and unrelated criminal matter.

Mr Abbott says there does seem to have been some issues with the police action.

"My understanding is that the Attorney-General has issued a polite please explain to the AFP," he said.

"But the actual matter itself was an operational policing matter entirely at arms length from Government and that's as it should be."

The AFP says Tuesday's raids on Seven, and the network's lawyers' premises, were "completely justified" and have yielded new material.

Deputy Commissioner Michael Phelan says the network was very cooperative with AFP requests for information prior to Tuesday's raids.

"That material was handed over but we believed from that that there was more and that's why we went on to do the search warrants," he said.

"We firmly believed at the time that there was more information available and I am confident that when we did the search warrants we found that information that we were after - and indeed there may be more information, I don't know.

"We will see what is tied up in the documents and the material that is locked up in privilege."

The Seven Network says it will call for a judicial review of the AFP's existing search warrants on Monday in the Federal Court.

Seven signs agreement with sister to 'arrange' interview

The Seven Network's Bruce McWilliam says he is grateful the AFP apologised and says interview negotiations with the Corby family are continuing.

"The only signed agreement is an agreement with Mercedes Corby to use her best endeavours to arrange an interview," he said.

Channel Seven says Ms Corby was paid about $20,000 to help arrange an interview with her sister.

"Sure, there's an expectation that money might have to be paid," Mr McWilliam said.

"[The proceeds of crime law] doesn't hit at the payer, it hits at the recipient. So we actually don't care whether it goes to the Government or who it goes to.

"Yes, we would like the interview. If we get it for nothing we would be happy with that too."

Deputy Commissioner Phelan says he would be "happy" for Schapelle Corby to be interviewed, but the agency is working hard to ensure she does not financially benefit, either directly or indirectly, from an interview.

The agency says it has seized proceeds of crime worth more than $100 million this year.

In her resignation from politics, Kelly O'Dwyer said she feared another miscarriage in Canberra, far from home. Her announcement is shocking for more than just party-political reasons, writes Emma A. Jane.